diff options
Diffstat (limited to 'kerberosIV/krb/netread.c')
-rw-r--r-- | kerberosIV/krb/netread.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/kerberosIV/krb/netread.c b/kerberosIV/krb/netread.c new file mode 100644 index 00000000000..e223b7915ac --- /dev/null +++ b/kerberosIV/krb/netread.c @@ -0,0 +1,63 @@ +/* + * This software may now be redistributed outside the US. + * + * $Source: /cvs/OpenBSD/src/kerberosIV/krb/Attic/netread.c,v $ + * + * $Locker: $ + */ + +/* + Copyright (C) 1989 by the Massachusetts Institute of Technology + + Export of this software from the United States of America is assumed + to require a specific license from the United States Government. + It is the responsibility of any person or organization contemplating + export to obtain such a license before exporting. + +WITHIN THAT CONSTRAINT, permission to use, copy, modify, and +distribute this software and its documentation for any purpose and +without fee is hereby granted, provided that the above copyright +notice appear in all copies and that both that copyright notice and +this permission notice appear in supporting documentation, and that +the name of M.I.T. not be used in advertising or publicity pertaining +to distribution of the software without specific, written prior +permission. M.I.T. makes no representations about the suitability of +this software for any purpose. It is provided "as is" without express +or implied warranty. + + */ + +#include "krb_locl.h" + +/* + * krb_net_read() reads from the file descriptor "fd" to the buffer + * "buf", until either 1) "len" bytes have been read or 2) cannot + * read anymore from "fd". It returns the number of bytes read + * or a read() error. (The calling interface is identical to + * read(2).) + * + * XXX must not use non-blocking I/O + */ + +int +krb_net_read(fd, buf, len) + int fd; + register char *buf; + register int len; +{ + int cc, len2 = 0; + + do { + cc = read(fd, buf, len); + if (cc < 0) + return(cc); /* errno is already set */ + else if (cc == 0) { + return(len2); + } else { + buf += cc; + len2 += cc; + len -= cc; + } + } while (len > 0); + return(len2); +} |